USB external hard drive cable that provides power and data. This 3-foot USB A to Micro B Y-Cable provides 2 USB 'A' Male connectors and 1 USB 'micro 'B' Male connector, providing a solution for supporting the additional power required by some Micro USB external hard drives connected to the standard USB ports which is provided by most computers.Especially valuable in situations where a single USB 2.0 port may not offer sufficient power to external hard drives, the USB A/Micro B Y-cable can be connected to 2 ports on 1 PC, to increase the power output to the external device. In addition it provides digital data transmission for high speed data transfers.